Lebanon’s Iran-backed Hezbollah group said on Tuesday it had launched a drone attack against Israeli military bases north of the city of Acre, in its deepest strike into Israeli territory since the Gaza war began.

The Israeli military said it had no knowledge of any of its facilities being hit by Hezbollah, but had said earlier on Tuesday that it intercepted two “aerial targets” off Israel’s northern coast.

Hezbollah said it acted in retaliation for an earlier Israeli attack killing one of its fighters. The group published what appeared to be a satellite photo, with the location of the strike symbolised by a flash with a red circle around it that sat halfway between Acre and Nahariyya to the north.

Israeli airstrikes killed two Hezbollah fighters in southern Lebanon, the military said earlier on Tuesday. Hezbollah later confirmed the death of one of its fighters, Hussein Azkoul, but provided no further details.

A separate Israeli strike overnight on Monday to Tuesday killed a fighter in Hezbollah’s elite unit.